Ring cover with dome



FIG. 1 is a perspective view of a ring cover of the present design over a gemstone ring;

FIG. 2 is a perspective view of a ring cover;

FIG. 3 is a front elevational view thereof, where the rear elevational view is identical thereto;

FIG. 4 is a left side elevational view thereof, where the right side elevational view is identical thereto;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a top view thereof.

The broken lines shown in FIG. 1, perspective view of a ring cover of the present design over a gemstone ring, represents environmental subject matter which forms no part of the claimed design. 

CLAIM The ornamental design for a ring cover, as shown and described. 